Shearing machine



W. SCHWEBKE SHEARING MACHINE June 9, 1925. 1,544,592

Filed b 21, 1924 2 sheets sneet 1 June 9, 1925.-

W. SCHWEBKE SHEARING MACHINE 2 Sheets-Sheet 2 INVENTOR. A \Sohweb k0,

Filed Feb, 21, 1924 lllllllllli ATTORNEY.

Patented June 9, 1925.

u-Nir Areaforrrloe."

. 2 snneamennon-mn Application filed February 1' 0 alhuho'mit mayconcern Be it knownthat I','-1 v nL'i;E1rSoriwnnKE, a citizen of tlie',United States, residing at Beloit, in the county" of Roc'lrand State oflVisconsi n, have invented certain, new and useful Improvements inShearingiMaehines,

of which the following is a specification.

.Tlns invention relatesto a shearing machine designed pr marily for theuse ofgarfor itsobje'c t togprov-ide, inamannerj as hereinafter,setforth, a newjand novel icon struction o'fmachine (for expeditiously',.cut-

ting ,elastic webbing be'lt loops,1cloth coat hangers and .all narrowgaugec lo't'h anaterlal which Ehas been heretofore cut by hand,

whereby the cutting operation is greatly facilitated, andtheeinploynient' of hand labor dispensed, with,

Further objects of the invention are to provide, in a manner ashereinafterset forth a shearing inachine'for the purpose referred to,1which is. simple in its construction and arrangement, strong, compact,thoroughly efiicientand convenient "in its use, readily assen'ibled andcomparatively inexpensive to set up. i

' dvith the view, the invention consists of 'thefnovel construction,combination and arrangement of parts, as hereinafter nore specificallydescribed and illustratedin the accompanying drawings, wherein is shownan embodiment of the invention; but it is to be understood that changes,variations and, modifications can be resorted to'which come within thescope of the claims hereunto appended.

In the drawings whereii'rlikereference characters denote corresponding 1parts throughout the several'views:-

Figure 1 is a topplan view of a shearing.

machine in accordance-with this invention.

Figure 2 is a side elevation thereof. Figure. .is a fragmentary view, infront elevation, of the base and standard.

Figure 4 is a front elevation of a modified form;

Figure is a side elevation of the form shown in Figure 3. i v Figure 6is a fragmentary view,'in sec tion, of either of the forms. I

lheniaterial operated upon by a shearing machine, in accordancewith'thi's invention,

foregoing; and other objects in 2 1, .1324; Serial No. 694,351.

1 (is set up in 'roll-likefman and mounted upon I a reel or spool andisunwound from the ihaving its upper or free end formed with a verticallydisposed cylindrical guide;10. The head member 9, rearwardly of theguide 10, has a verticallydisposed lug 11 formed integral therewith-andwhich projects above the top of the guide 10. i I Secured to the frontof the standard 7, at the upper end thereof, as well as beingvoverlapped by the bottom of'the head anember is axrec'tangular tableorxpjlatform' 12 of substantial length and which is provided atone endwith a boss 13, to which the bracket '5 is secured. The table orplatform 12 is: formed in proximity, to its 'otherxend with arectangular opening 14. The table 12 ha ){IIPBXCGDSlQll' 12 interposedbetween the standard and-member 9 and secured by the hold-fastdeVicesStheretQ. V

The table or platform 12,,intermediate its ends, is provided with atransverse slot 15, which has one end positioned at a pointrenioved fromthe outer side edge of the plat intermediate its ends, is provided withfor- ,wardly directed lugs 19 and between the lugs 19' the flange 17Ihasa slot 20,'which registers with an opening 21 formed in the front of thestandard 7, near the upper end 1 thereof; The slots 15 and 20 andopening 21 provide clearances for the operation of a cutter bar or knife22, when the latter is shifted to and from operative position; The base6, at the front thereof and directly'below the. slot- 15, is providedwith a pair of upstanding lugs 23, and extending between saidllugs 23 isa depending stein 2 1 ofa foot treadle25. The stem 24 is pivotallyconnected to the lugs 23, as at 26. The stem 24 depends into the base 6and is pivotally connected, as at 27, to a rearwardly extended link 28,having its rear end pivotally connected, as at 29, to an upstandinglever 30, and the latter is of a length to eX-' tend into the headmember 9. The upper portion of the lever is offset with respect to thelower portion, as indicated at 31. The lever 30, at a point in proximityto the offset portion 31 thereof, is mounted upon a pivot 32 secured inspaced bosses integral with the standard 7. The lever 30 extends upthrough the standard 7 and is pivotally ing link which projects from therear of the head member 9 and is pivotally connected, as at 36, to theforward arm 37 of a bell crank lever 38, which is pivotally mounted, asat 38 on an arm 9 extended from the head 9. The other arm of the lever38 is indicated at 39, and is provided with a pin 40 which extends intoa peripheral groove 41, formed in a clutching member 42, which rotateswith and is slidably connected to an operating shaft 43.

Secured to the rear of the standard 7, near the top thereof, is asupport 44, provided intermediate the top thereof with a standard 45,and said support has formed integral therewith and projecting from oneside thereof an angle-shaped arm 46. The shaft 43 is mounted at one endon the upper portion of the arm 46, and said shaft 43 J 18 also mountedin and projects from the standard 45. Loosely mounted upon the shaft 43is a drive pulley 47, provided with a clutch member 48, which is engagedby the clutch member 42, whereby the pulley 47 is coupled with the shaft43 to provide for the operation thereof.

Fixed to that end of the shaft 43 which projects from the standard 45,is a circular disk 49, having an eccentrically disposed pin 50 to whichthe lower end of a link 51 is connected, as at 52.

Pivotally connected to the upper end of the lug 11, as at 53, is aplunger operating lever 54, having its rear end offset, as at 55, andwith said rear end pivoted, as at 56, to the upper end of the link 51.

The forward end of the lever 54, is off set as at 57, and secured to thelever 54, by the hold-fast devices 58, is an offset plate 59 Whichopposes the offset portion 57 of the lever 54, as well as being spacedtherefrom. The offset portion 57, as well as the plate 59, is formedwith a lengthwise extending slot 60.

Operating through the guide 10, is a plunger 61, provided at its upperend with a transverse pin 62 slidably mounted in the 5 slot 60 of theoffset portion 57 and plate 59,

whereby the plunger 61 is slidably connected to the lever 54, so that onthe operation of the lever 54 of the plunger 61 will be carriedtherewith.

The cutter bar or knife 22 is of substan-- tial length and width and ispivotally connected at its forward end, as at 63, to the 65 ofsubstantial length which opens at the rear end thereof, and extendingthrough the slot 65 1s a pm 66 carried by the lugs 19, and by thisarrangement the cutter bar or knife is slidably connected to the lugs19. connected, as at 34, to a rearwardly eXtend- With respect to theoperation of a machine constructed in the manner as stated, it will beassumed that the reel or roll of material has been mounted in positionupon the platform or table 12. The operator positions himself forwardlyof the platform 12 and unwindsthe material until the web 2 thereof iswithdrawn a sufficient length to position it under the knife 22, so thatthe web can be cut in any length desired. After the web has beenpositioned under the knife, the operator depresses the foot treadlewhereby the lever 31, in connection with the link 35, will actuate thebell crank lever to shift the clutch member 41 into engagement with theclutch member '48, whereby the shaft 43 will be operated from the pulley47. When the shaft 43 is operated, the plate 49 is carried therewithactuating the link 51 which causes the oscilla tion of the lever 54,whereby the plunger 61 is reciprocated and the 'knifeor cutter operatedto cut the material. This, operation is continued as long as theoperator applies the necessary pressure to the foot treadle. The forcingof the plunger downward carries the knife therewith and imparts to theknife a downward and backward movement giving thereto a slicing actioncaused by the knife travelling upon the guide pin 66 and which insures aperfect severing of the material at a minimum pressure. The slots 15 and20, as well as the opening 21, provide a clearance for the movement ortravel of the knife when operated by the plunger. connection between theplunger and lever 54 compensates for the are created by the radiusdescribed during the movement of the forward end of the lever 54. Thesevered material is pushed to the left by the left hand and dischargedthrough the opening 14 in the platform 12.

In the form shown inFigures 4. and 5, the knife or cutter 67 is operatedmanually, but it is of the same construction as the knife or cutter 22.The plunger operating lever 68 is of similar construction to the plungeroperating lever 64, and this statement applies to the plunger guide 69and plunger 70 with respect to the guide 10 The pin and slot I form 12.V v In Figures 4i and '5, 72indicates a base, 7 3 a hollow standard.fomnedintegral there.

.with, 74 a .head member of. curved contour, and which hasv itsupper,end;,pro ect1ng forwardly. -The head member 74 is connected. tothe top ofthe standardZS by hold-fast devices 75, and said head member74 has an upstanding lug .7 6 to which the 1 lever-.68 is pivoted, asat77.

The standard 73, near its lower end, it. formed with a pair of lugs 78to which is pivotally connected, as at: 79, a spring controlled footoperated lever 80, which extends into the standards 73 and has its innerend pivoted, as at 81, to the lower end of a vertically disposedoperating rod 82 and which projects up through the standard 73, as wellas through the rear of the head member 7% and is pivotally connected, asat 83, to the rear end of the lever 68. The lever 80, at its forward endhas pivotally connected, as at 84, a foottreadle 85. Attached to thelever 80, as at 86, is a controlling spring 87, which is connected as at88, to the standard 73.

The table 71 is provided with the slots and 20, and the standard 73 withthe opening 21. The table 71 has a lug 19 and a guide pin 66. lVithrespect to the table and standard of either form of machine, they areconstructed in the same manner as shown in Figure 6.

When operating the form of machine shown in Figures 4 and 5, theoperator til depresses the outer end of the lever 80 against the actionof the spring 87 and which elevates the rod 82, whereby the lever 68 isrocked on its pivot 77 and the plunger lowered, and on the lowering ofthe plunger a sheer cut is had by the knife 67 on the material.

The table 71 has a'boss 89 for the reception of the real support orbracket 5, and a pair of wear plates 90 between which the knifeoperates.

It is thought that the many advantages of a shearing machine constructedin a manner as illustrated and described and for the purpose set forth,can be readily understood, and although the. preferred embodiment of theinvention is as referred to, yet it is to be understood that changes inthe details of construction can be had which will fall within the scopeof the invention as claimed.

\Vhat I claim is 1. A machine for the purpose set forth comprising aslotted material support, a lengthwise slotted knife operating throughthe slot of the support for shearing the material on the support, aguide pin carried by the support and operating in the slot of the knife,meansconnected'to the;forward fl endof the knife for imparting adownward ,and ,rearward movement thereto toprovide ;for the shearing ofthematerial by the knife, a pivotedwlever,slidahly ,clonnected to saidmeans, and means connected with the rear ,end of .the leverforvoperating it.

2. A machine for the purpose set forth comprising a slotted material.sup,port, a

' lengthwise slotted knife operatingthrough the (slot of the support forshearing the material on the support, a guide pincanried bythesupportand operating in the-,slot of theknife, aneans connected to the forwardend ofthe knife for imparting a downward and rearward movement theretoto provide for the shearing of the material by the knife, and saidsupport provided at one end with means for connecting with the support acarrier from which the material is unwound, and said support furtherprovided with an opening for the discharge of the sheared material,

3. Al machine for the purpose set forth comprising a slotted materialsupport, a lengthwise slot-ted knife operating through the slot of thesupport for shearing the material on the support, a guide pin carried bythe support and operating in the slot of the knife, means connected tothe forward end of the knife for imparting a downward and rearwardmovement thereto to provide for the shearingof the material by theknife, a pivoted lever slidably connected to said means, means connectedwith the rear end' of the lever for shifting it, said support providedat one end with means for connecting with the support a carrier fromwhich the material is unwound, and said support further provided with anopening for the discharge of the sheared material.

4. A machine for the purpose set forth comprising a standard, a supportfor the material to be sheared, said sup-port of substantial length andwidth and slotted intermediate its ends and further secured to saidstandard, said standard provided with an opening registering with theslotted portion of the support, a lengthwise slotted knife having itsrear end permanently extending in the slotted portion of the support, aguide pin carried by the support and operating in the slot of the knife,means connected to the outer end of the knife for imparting thereto adownward and rearward movement, whereby the knife will shift through theslotted portion of the support and said opening for shearing thematerial upon the support, a head member secured to said standard andhaving a forwardly projecting upper end provided with a guide for saidmeans, and a shift-able operating lever pivotally supported on said headmember and slidably connected with said means for operating the same forshifting the knife.

& v

5. A machine for the purpose set forth comprising a standard, a supportfor the material to be sheared, said support of substantial length andWidth and slotted intermediate its ends and further secured to saidstandard, said standard provided with an opening registering with theslotted portion of the support, a lengthwise slotted knife having itsrear end pern'ianentlv extending in the slotted portion of the support,a guide pin carried by the support and operating in the slot of theknife, means eonneeted to the outer-end of the knife for impartingthereto a downward and rearward movement, whereby the knife will shiftthrough the slotted portion of the support and said opening for shearingthe material upon the support, a head member secured to said standardand having a forwardly projecting upper end provided with a guide forsaid means, a shiftable operating lever pivotally supported on said headmember and slidably ronneeted with said means for operating the same forshifting the knife, and means conneeted to said lever for shifting it,said last mentioned means including a foot treadle.

In testimony whereof, I afiix my signature hereto.

WALTER sonwnenn.

